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Single and Double-Stranded 1D-Coordination Polymers with 4'-(4-Alkyloxyphenyl)-3,2':6',3"-terpyridines and {Cu2(μ-OAc)4} or {Cu4(μ3-OH)2(μ-OAc)2(μ3-OAc)2(AcO-κO)2} Motifs

Rocco, Dalila and Manfroni, Giacomo and Prescimone, Alessandro and Klein, Y. Maximilian and Gawryluk, Dariusz J. and Constable, Edwin C. and Housecroft, Catherine E.. (2020) Single and Double-Stranded 1D-Coordination Polymers with 4'-(4-Alkyloxyphenyl)-3,2':6',3"-terpyridines and {Cu2(μ-OAc)4} or {Cu4(μ3-OH)2(μ-OAc)2(μ3-OAc)2(AcO-κO)2} Motifs. Polymers, 12. p. 318.

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Abstract

Five coordination polymers formed from combinations of copper(II) acetate and 4'-(4-alkyloxyphenyl)-3,2':6',3''-terpyridines with methoxy ( 1 ), n -butoxy ( 2 ), n -pentyloxy ( 3 ) and n -heptyloxy ( 4 ) substituents are reported. Reaction of 1 with Cu(OAc)2∙H2O leads to the 1D-polymer [Cu2(μ-OAc)4( 1 )] n in which {Cu2(μ-OAc)4} paddle-wheel units are connected by ligands 1 , or [{Cu4(μ3-OH)2(μ-OAc)2(μ3-OAc)2(AcO-κO)2( 1 )2} . 2MeOH] n in which centrosymmetric tetranuclear clusters link pairs of ligands 1 to give a double-stranded 1D-polymer. Layering solutions of Cu(OAc)2∙H2O (in MeOH) over 2 , 3 or 4 (in CHCl3) leads to the assembly of the 1D-polymers [2{Cu2(μ-OAc)4( 2 )} . 1.25MeOH] n , [Cu2(μ-OAc)4( 3 )] n and [{Cu2(μ-OAc)4( 4 )} . 0.2CHCl3] n . In all compounds, the 3,2':6',3''-tpy unit coordinates only through the outer pyridine rings, but the conformation of the 3,2':6',3''-tpy responds to changes in the length of the alkyloxy tails leading to changes in the conformation of the polymer backbone and in the packing of the chains in the crystal lattice in the chains featuring {Cu2(μ-OAc)4} paddle-wheel linkers.
Faculties and Departments:05 Faculty of Science > Departement Chemie > Chemie > Anorganische Chemie (Constable)
05 Faculty of Science > Departement Chemie > Chemie > Anorganische Chemie (Housecroft)
UniBasel Contributors:Housecroft, Catherine Elizabeth and Rocco, Dalila and Manfroni, Giacomo and Constable, Edwin Charles and Prescimone, Alessandro
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:MDPI
e-ISSN:2073-4360
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
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Last Modified:05 Feb 2020 13:46
Deposited On:05 Feb 2020 13:46

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